Easy glitch, similar to the proficiency glitch allowing you to get up to 15 custom classes :). All you need is a friend and another account wih one unlock token. Any questions leave a comment and i'll do my best to answer.

In this video i show you:How to jump in mw3How to strafe jump in mw3How to get extra custom classes in mw3How to glitch in mw3

See you in the next video, guys!!!!

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